Cultivator



June 14,1927. 1,632,638

Y J. w. WALKER ",CULTIVATOR v Filed Aug- 2, 1926 f v 2 sheets-sheet 1 [Wk/V7017 Ja e; A ZMM lfor cultivating the soil during the growth of the plants.

lated and further to a H which will not only regulate the depth of 10., having han I mediate thelength Patented June 14, 1927.

ovmiveqroaj g A Appli ation meaau 'ust 2, m. jsen ai -I I o. "-126,f1=32.

This invention relates to improvements in cultlyators, and has especial relation to a de-' vice for preparing, the-soil for planting, and

'It has especial relation also, to a-cultivator in which the angle and depth at which the blades are" set to cut canbe readilyregucut but will .lso smooth the surfacefbetween the blades.

,fllhe'obectsof the invention are,' a (a) To provide means for regulating the I 1depth of out of the cultivator blades. with reference to the lead sh l; (b) To provide means (0) To provide means forregulating the depth of thefront end ofeachofthe cultivator blades with reference thereof; 7 g

(d) To provide means for'regulating the lateral spacing of the cultivator blades (a) "To .providemeans for regulating the depth oflcut ofrthe,leadshovel;

) To provide means for regulating the depth of cut of thecultivator blades. and

(g) T0 providemeans-for smoothing and shaping the surface between the blades.

The means by which the ;,f oregoing and other objectsare accomplished; and 't'he manner of their accomplishment, readily will be understood from the accompanying description on reference to the drawings, inwhich '1 is -aperspective'-view of my cultivator.

Fig. '2 is a side elevation-showing both depth regulators, ,;1n approximatelyftheir lowest position.

'Eig Sisaplan view of the cultivator.

Fig. 4&8 a sectional. elevation on the 'line the detail ofthe smoothing board feature of the rear depthregulator.

Referring now to the drawings, in which the various parts are indicated by numerals,

"bolts to for n thesinitial unit, of the {frame o'f'the device. The ;front end 13 of the draft I "beam '10 is turned vertically .upward and a after planting andf.

t 'fi e ea e 1 a g orward' ends of simila-ivo'ljpositely disposed sidebars 18 are pivotally secured forlat'eral 19 are oppositely dis-. .iregulating rneansj a. y for regulating the depth of cut of the-front set of cultivator only provides Ineans permitting blades with reference to the rear setof blades .tothe-rear end' I justmentofthe ence to the central beam elves we a y e vally attached to theside frames and are. anguprovided with additional that they re r c t a a v geachof the standards 27 isa front cultivator-- i blade 29 and to leach of; the standards 28 a r te lt vat i la being in each case a s iitgle bolt" 31" so that g supporting the front end o feach one of which holes clevis 15. may-be setured, as by La removable pin 16, to provide regiilation for thelheight of hitch: vSecured brackets 17 in which the endofone of said spreader barsxbeing superimposed onlthe'o ther within a clamp incinber "20, through whichclarnp-Inexnber' the beam 1 also passes.

clamp the -,bea

against-movement. This clamping device'not lateral adjustment of theside bars toward and away from each other; but also allows individual adjustn ent ,of each of said bars with refer enceto the beam 10,'so that the angular ad+ and handle bars may be Iva'riedas maybe deslred. The draft beam and side bars assembly are hereinafter Qref-erred to as the"fr ame of thecultivator.

2211 s a standard ,pivotally secured to the beam 1Q, forwardly of the bracket 17," as by a, bolt or rivet 23, the standard being provided with h les 245through.any oneofwhich a-bolt25 maybe passed to vary the angular relation of the standard with referenoe tothe frame. 26 is an ordinary double fshovelcarried by the standard 22. y y

On the side bars 18 intermediate their standards 27 and .rear cultivator-blade st andof which standards are pivotlarly adjustable (in relation thereto, as hereg 21 is a hand-wheel carrying a set screw which is adapted to cultivator blades with refer PATENT a Ipliu'ality of holes 1 l'forniecltherein, in any a? length are secured, front cultivatorblade inbefore describdforthe standard22. In

additive the rea ha r or standards 28 is p votal holes, so

the-side bars 18. Secured to 'pivpq ny secured to these blade 29 1 hanger 32 thelupper end of which is providedwith a plurality; of holes, through iza m e cf al sh s t bolt ma b may ,be vertically adjusted 'with a blade is supported by a hanger bar 36 vator-standard 27.

and is provided with a draft bar 37, each of which bars is pivotally secured to a culti- The method of attachment and supports for the two blades on the opposite sides of the cultivator is substantially identical.

It will be seen that by loosening the handwheel 21 the blades may be spread apart to such width as maybe desired and may be shifted with angular relation to the beam 10, and that by raising or lowering the supporting bars 32 36, the forward end of each i front and rear cultivator blade may be raised or lowered as may be desired, the

standards'27 and 28 being correspondingly moved to permit such adjustment.

. It will further be seen that by raising a rear standard 28 with reference to its side bar 18 that the rear end of the blade carried thereby may be raised to permit. such blade to conform to the shape of a seed bed, and that where both of the rear blades are thus raised the central portion of the cultivator may work in the trough or furrow between two of such seed beds, or similarly that should the two rear standards be lowered the cultivator blades would. be set to ride on and shape the crown of a. seed bed.

38 is a depth-regulator which is provided with suitable holes 39 through which it may be bolted or clampechin desired positions of 40. is a shoe on the lower end of this regulator. By adjusting the height of this regulator the depth of the front end of the cultivator may be regulated. 4l42 are similarly shaped.

oppositely disposed bars or levers one of which is pivotally attachedto one side frame 18 by a bolt or rivet 43, and the other thereof to t-he other side frame 18. The lower end of these levers carries a smoothing board 44 which board as will be seen by reference to Fig. 4 is preferably made up of a single plate 44 and two side plates 45, each ,pro-

' vided with a number of holes 46 near the upper edge thereof. The plates are each connected with the central plate 441by a single M247, and are connected to the arms 41, 42, each by a single bolt 47. .To the upper ends of the levers41 and 42, a cross chain 48 is attached, and this chain is in turn connected by achain 49 to a hook 50 on one of the handle barsll. The chain 49 is provided with a hook 51 which may be hooked into any link of the cross chain 48 so that should it be desired to pull one of the lovers 41 further back than the other lever 42 it is only necessary to engage the hook 51 in such link nearer the lever 41, as may be desired.

Such link of the chain 49 may then be engaged with the hook 50 as will give the proper depth regulation.

It will be seen that the construction herein also provides means whereby the blade 5 which is the part which wears may be readily replaced without replacing the draft bar, which latter takes little of the wear and lasts very much longer.

It further permits the draft bar to be i made thin and flexible, whereby especially, the width adjustn'lent may be readily accomplished without the necessity of making the blade of corresponding thinness. The smoothing board not only performs this function, but acts as a depth regulator, and the independent regulation of each lever arm (4142) makes it possible to set the cultivator blades for shallower depth on one side than on the other thereof. The chain attachment carries a simple and efficient means for such depth adjustment which it is practically impossible to dislodge accidentally and which may be quickly and easily changed by the operator of the cultivator without leaving his position behind the bandle bars.

In using the cultivator the depth regulating shoe 4-0 is moved to such position as is desired and clamped. The side bars of the frame are set such distance apart as may he desired and the points or forward ends of the cultivator blades are adjusted to such height as may most satisfactorily perform the service to be rendered. using the cultivator the smoothing board is adjusted during use to such depth as the operator may wish. Should 'one of the blades wear out the same may readily be removed and only the part which is worn out be replaced. It will readily be understood t-hat the drawings herein are illustrative only and that I do not desire to be limited to the construction or detail herein shown except as may be hereinafter set out in the claims.

Having thus disclosed the invention, what is claimed, is:-

1. In a cultivator having a central draft beam and side bars laterally adjustable. with reference thereto. a central standard depending from said draft beam. standards depending from said side bars, a blade pivotally attached to each of said latter stand ards, adj ustable supporting members depend- Thereafter in ,draft member extending from each blade to the standard forward thereof.

1 tached to each of sa1d latter standards,"

depending 2. In a cultivator having a frame, standards connected to said frame and depending therebelow, a blade pivotally attached to the lower end of one of said standards,-a supporting member adjustably secured to said frame'and pivotally attached to the forward end of said blade and a flexible draft member pivotally secured to the forward end of said blade, and to the standard forward thereof.

3. Ina cultivator having a frame, a centrally disposed forward standard secured thereto and depending therefrom, stirring means carried by Said standard,*a pair of standards oppositely disposed secured to and depending from said frame, rearwardly of said'first standard, a blade pivotally- (Its hangers depending from said frame, each pivotally secured to the forward end of a blade,.'and' a draft member pivotally secured to each of said blades and to a standard immediately forward thereof.

4. In a cultivator having a central draft beam and a side bar laterally adjustable.

'with reference thereto, a central standard depending from said side bar, a blade pivotally attached to said latter standard, an

, adjustable supporting member depending from said side bar, and pivotally attached tothe forward end of said blade, and a draft member extending from each blade to the standard forward thereof. a

r 5. In a cultivator, having a frame and blades carried thereby, depth regulating means for said blades, comprising a pair of levers pivotally attached to opposite sides of said frame, a cross shoe having its ends secured one to each of the lower ends ofsaid from said draft beam, a standard signature.

levers and means for adjusting the angular- 1ty of said levers.

6. In a cultivator, having-aframe and blades carried thereby, depth regulating V means for said blades, comprising a pair of levers pivotally attached to opposite sides of said frame, a cross shoe securedto the lower ends of said levers, a cross chain attached to the upper ends of said levers, an adjusting member securable to any link of said chain and means for retaining said ad 4 justing member in desired position. V

7. In a cultivator,having a frame and cultivator blades carried thereby, middle smoothing means, comprising, carrying means depending from said frame, side boards attached to said carrying means, and a central board pivotally attached to said side boards.

In a cultivator, having a frame, cultivator blades carried 'by said frame, and means for adjusting the lateral width of said frame, of middle smoothing means com- 7 s prising a pair of levers, pivotally attached to said frames, a board having a plurality of holes in the upper edge thereof, attached to each of said levers, a'central board having a r plurality of similarly located holes therein,

to provide means for securing said boards together invarying positions of lateral and angular adjustment, and means for varying the angularity of said levers to regulate the depth of said board.

9. In a cultivator havinga frame, cultivator blades. carried by said frame and:

means for varying the lateral width of said frame, levers, pivotally attached to said frame, a smoothing board comprising a plurality of pieces attached to thelower ends of said levers, and means for varying the angular and lateral relation of said pieces.

In testimony of the foregoing, I aflix my [JAMES w. WALKER. 

